🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.4

Radius: 15

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.18 AU - 1.8 AU

Year: 1213 Days

Day: 12.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 82,256,972 km

• M1: 193,430 km (0.081 R)
• M2: 300,991 km (0.098 R)
• M3: 401,969 km (0.095 R)
• M4: 518,357 km (0.102 R)
• M5: 627,264 km (0.077 R)
• M6: 741,108 km (0.111 R)
• M7: 879,037 km (0.092 R)
• M8: 1,038,359 km (0.115 R)
• M9: 1,312,572 km (0.118 R)
• M10: 1,458,878 km (0.116 R)
• M11: 1,557,463 km (0.066 R)
• M12: 1,692,700 km (0.094 R)
• M13: 1,968,259 km (0.106 R)
• M14: 2,452,657 km (0.096 R)
• M15: 2,595,822 km (0.094 R)
• M16: 2,717,296 km (0.052 R)
• M17: 2,890,680 km (0.097 R)
• M18: 2,999,886 km (0.106 R)
• M19: 3,127,643 km (0.109 R)
• M20: 3,248,667 km (0.099 R)
• M21: 3,344,859 km (0.114 R)
• M22: 3,441,948 km (0.108 R)
• M23: 3,540,234 km (0.105 R)
• M24: 3,648,393 km (0.107 R)
• M25: 3,757,599 km (0.073 R)
• M26: 3,923,803 km (0.118 R)
• M27: 4,035,851 km (0.089 R)
• M28: 4,196,519 km (0.119 R)
• M29: 4,475,669 km (0.098 R)
• M30: 4,642,172 km (0.114 R)
• M31: 4,820,791 km (0.097 R)
• M32: 5,011,828 km (0.088 R)
• M33: 5,195,235 km (0.101 R)
• M34: 5,464,062 km (0.076 R)
• M35: 5,705,812 km (0.117 R)
• M36: 5,897,447 km (0.119 R)
• M37: 6,069,634 km (0.118 R)
• M38: 6,298,220 km (0.111 R)
• M39: 6,551,788 km (0.088 R)
• M40: 6,663,089 km (0.113 R)
• M41: 6,865,196 km (0.062 R)
• M42: 7,069,247 km (0.09 R)
• M43: 7,252,355 km (0.101 R)
• M44: 7,367,695 km (0.101 R)
• M45: 7,600,021 km (0.104 R)
• M46: 7,693,669 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.1

Radius: 8.4

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.22 AU - 1.86 AU

Year: 1274 Days

Day: 14.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 82,256,972 km

• M1: 105,616 km (0.11 R)
• M2: 182,809 km (0.096 R)
• M3: 383,419 km (0.06 R)
• M4: 536,009 km (0.083 R)
• M5: 654,042 km (0.049 R)
• M6: 825,331 km (0.039 R)
• M7: 901,178 km (0.113 R)
• M8: 1,019,659 km (0.077 R)
• M9: 1,134,999 km (0.055 R)
• M10: 1,228,797 km (0.083 R)
• M11: 1,316,312 km (0.105 R)
• M12: 1,424,321 km (0.065 R)
• M13: 1,736,532 km (0.09 R)
• M14: 1,795,623 km (0.088 R)
• M15: 1,875,509 km (0.037 R)
• M16: 2,080,607 km (0.09 R)
• M17: 2,196,546 km (0.052 R)
• M18: 2,434,855 km (0.089 R)
• M19: 2,534,786 km (0.03 R)
• M20: 2,624,844 km (0.062 R)
• M21: 2,750,357 km (0.072 R)
• M22: 2,912,970 km (0.033 R)
• M23: 3,223,535 km (0.1 R)
• M24: 3,284,571 km (0.07 R)
• M25: 3,370,590 km (0.041 R)
• M26: 3,532,305 km (0.081 R)
• M27: 3,721,995 km (0.109 R)
• M28: 4,059,039 km (0.089 R)
• M29: 4,325,024 km (0.106 R)
• M30: 4,637,833 km (0.068 R)
• M31: 4,832,011 km (0.032 R)
• M32: 4,929,998 km (0.047 R)
• M33: 5,171,000 km (0.098 R)
• M34: 5,386,720 km (0.095 R)
• M35: 5,605,432 km (0.087 R)
• M36: 5,901,786 km (0.081 R)
• M37: 6,036,723 km (0.11 R)
• M38: 6,112,120 km (0.066 R)
• M39: 6,586,944 km (0.097 R)
• M40: 6,695,701 km (0.112 R)
• M41: 7,217,050 km (0.069 R)
• M42: 7,506,821 km (0.114 R)
• M43: 7,685,890 km (0.069 R)
• M44: 7,882,761 km (0.109 R)
• M45: 7,998,400 km (0.108 R)
• M46: 8,131,243 km (0.098 R)
• M47: 8,315,248 km (0.076 R)
• M48: 8,517,355 km (0.108 R)
• M49: 8,755,365 km (0.09 R)
• M50: 8,840,785 km (0.089 R)
• M51: 9,047,230 km (0.084 R)
• M52: 9,289,878 km (0.113 R)
• M53: 9,359,740 km (0.11 R)
• M54: 9,711,146 km (0.073 R)
• M55: 9,781,906 km (0.041 R)
• M56: 10,102,793 km (0.071 R)
• M57: 10,372,668 km (0.031 R)
• M58: 10,608,583 km (0.078 R)
• M59: 10,828,043 km (0.098 R)
• M60: 11,457,551 km (0.104 R)
• M61: 11,701,396 km (0.057 R)
• M62: 11,852,340 km (0.05 R)
• M63: 11,985,033 km (0.081 R)
• M64: 12,251,617 km (0.083 R)
• M65: 12,366,508 km (0.098 R)
• M66: 12,462,550 km (0.06 R)
• M67: 12,578,189 km (0.068 R)
• M68: 12,674,680 km (0.059 R)
• M69: 12,771,619 km (0.088 R)
• M70: 12,907,454 km (0.099 R)
• M71: 13,083,082 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.4

Radius: 14.6

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.55 AU - 3.33 AU

Year: 3362 Days

Day: 13.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 82,256,972 km

• M1: 189,541 km (0.107 R)
• M2: 334,351 km (0.117 R)
• M3: 622,626 km (0.116 R)
• M4: 795,412 km (0.03 R)
• M5: 931,546 km (0.1 R)
• M6: 1,030,879 km (0.101 R)
• M7: 1,169,706 km (0.08 R)
• M8: 1,266,047 km (0.115 R)
• M9: 1,585,887 km (0.107 R)
• M10: 1,693,897 km (0.093 R)
• M11: 1,846,636 km (0.104 R)
• M12: 2,196,546 km (0.103 R)
• M13: 2,348,687 km (0.08 R)
• M14: 2,583,854 km (0.114 R)
• M15: 2,696,352 km (0.083 R)
• M16: 2,959,794 km (0.063 R)
• M17: 3,128,839 km (0.082 R)
• M18: 3,249,116 km (0.109 R)
• M19: 3,353,386 km (0.073 R)
• M20: 3,529,911 km (0.102 R)
• M21: 3,637,323 km (0.116 R)
• M22: 3,837,335 km (0.052 R)
• M23: 4,134,586 km (0.06 R)
• M24: 4,851,160 km (0.05 R)
• M25: 4,991,183 km (0.096 R)
• M26: 5,173,094 km (0.11 R)
• M27: 5,275,120 km (0.086 R)
• M28: 5,690,254 km (0.108 R)
• M29: 5,795,721 km (0.069 R)
• M30: 6,116,159 km (0.095 R)
• M31: 6,707,520 km (0.085 R)
• M32: 6,819,120 km (0.076 R)
• M33: 6,953,758 km (0.119 R)
• M34: 7,089,293 km (0.041 R)
• M35: 7,340,169 km (0.093 R)
• M36: 7,827,409 km (0.109 R)
• M37: 7,944,993 km (0.039 R)
• M38: 8,063,176 km (0.081 R)
• M39: 8,181,956 km (0.098 R)
• M40: 8,541,739 km (0.119 R)
• M41: 8,638,529 km (0.072 R)
• M42: 8,735,768 km (0.116 R)
• M43: 8,906,758 km (0.069 R)
• M44: 9,103,629 km (0.091 R)
• M45: 9,326,679 km (0.054 R)
• M46: 10,211,700 km (0.083 R)
• M47: 10,417,846 km (0.07 R)
• M48: 10,781,818 km (0.055 R)
• M49: 11,629,738 km (0.116 R)
• M50: 11,737,150 km (0.111 R)
• M51: 12,088,854 km (0.057 R)
• M52: 12,416,474 km (0.091 R)
• M53: 13,984,409 km (0.079 R)
• M54: 14,472,846 km (0.06 R)
• M55: 15,289,351 km (0.099 R)
• M56: 15,584,508 km (0.09 R)
• M57: 15,851,989 km (0.117 R)
• M58: 16,090,897 km (0.08 R)
• M59: 16,210,724 km (0.11 R)
• M60: 16,481,646 km (0.095 R)
• M61: 16,814,801 km (0.047 R)
• M62: 17,272,720 km (0.108 R)
• M63: 18,294,623 km (0.066 R)
• M64: 19,591,636 km (0.109 R)
• M65: 20,073,491 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.5

Radius: 13.8

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.47 AU - 5.27 AU

Year: 6092 Days

Day: 6.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 82,256,972 km

• M1: 196,721 km (0.1 R)
• M2: 339,737 km (0.117 R)
• M3: 480,508 km (0.094 R)
• M4: 603,328 km (0.034 R)
• M5: 787,184 km (0.113 R)
• M6: 951,742 km (0.083 R)
• M7: 1,214,286 km (0.066 R)
• M8: 1,332,319 km (0.077 R)
• M9: 1,438,982 km (0.111 R)
• M10: 1,743,713 km (0.052 R)
• M11: 2,194,601 km (0.113 R)
• M12: 2,433,957 km (0.118 R)
• M13: 2,720,886 km (0.101 R)
• M14: 3,141,406 km (0.072 R)
• M15: 3,328,104 km (0.119 R)
• M16: 3,888,198 km (0.047 R)
• M17: 4,111,548 km (0.087 R)
• M18: 4,524,438 km (0.061 R)
• M19: 4,950,942 km (0.106 R)
• M20: 5,715,686 km (0.027 R)
• M21: 6,307,196 km (0.095 R)
• M22: 6,650,074 km (0.032 R)
• M23: 6,864,298 km (0.118 R)
• M24: 7,272,102 km (0.08 R)
• M25: 7,603,910 km (0.045 R)
• M26: 7,997,502 km (0.075 R)
• M27: 8,484,593 km (0.101 R)
• M28: 8,687,896 km (0.094 R)
• M29: 9,367,370 km (0.101 R)
• M30: 9,517,417 km (0.105 R)
• M31: 9,668,211 km (0.082 R)
• M32: 9,819,903 km (0.109 R)
• M33: 9,911,158 km (0.105 R)
• M34: 10,341,252 km (0.111 R)
• M35: 11,124,546 km (0.057 R)
• M36: 11,251,705 km (0.096 R)
• M37: 11,411,326 km (0.086 R)
• M38: 12,450,432 km (0.088 R)
• M39: 13,048,225 km (0.089 R)
• M40: 13,215,925 km (0.097 R)
• M41: 13,553,567 km (0.081 R)
• M42: 14,792,537 km (0.036 R)
• M43: 15,603,058 km (0.065 R)
• M44: 15,709,871 km (0.028 R)
• M45: 16,175,569 km (0.064 R)
• M46: 16,573,051 km (0.113 R)
• M47: 18,008,292 km (0.06 R)
• M48: 18,495,682 km (0.096 R)
• M49: 18,759,872 km (0.084 R)
• M50: 19,139,402 km (0.1 R)
• M51: 19,790,602 km (0.083 R)
• M52: 20,410,086 km (0.096 R)
• M53: 21,906,963 km (0.105 R)
• M54: 22,186,561 km (0.111 R)
• M55: 22,910,914 km (0.063 R)
• M56: 24,053,243 km (0.12 R)
• M57: 24,176,811 km (0.081 R)
• M58: 24,880,519 km (0.104 R)
• M59: 25,005,434 km (0.084 R)
• M60: 25,801,294 km (0.087 R)
• M61: 26,477,926 km (0.09 R)
• M62: 26,605,533 km (0.101 R)
• M63: 26,946,616 km (0.066 R)
• M64: 27,203,326 km (0.115 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.3

Radius: 6

Gravity: 16.87 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.37 AU - 7.01 AU

Year: 10270 Days

Day: 24.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 82,256,972 km

• M1: 96,341 km (0.072 R)
• M2: 207,043 km (0.093 R)
• M3: 435,031 km (0.109 R)
• M4: 814,560 km (0.085 R)
• M5: 1,113,756 km (0.091 R)
• M6: 1,317,209 km (0.036 R)
• M7: 1,510,340 km (0.075 R)
• M8: 2,192,656 km (0.106 R)
• M9: 2,318,917 km (0.095 R)
• M10: 2,578,768 km (0.103 R)
• M11: 2,957,999 km (0.061 R)
• M12: 3,125,997 km (0.067 R)
• M13: 3,239,691 km (0.094 R)
• M14: 3,858,877 km (0.088 R)
• M15: 4,135,334 km (0.104 R)
• M16: 4,197,716 km (0.096 R)
• M17: 4,323,229 km (0.113 R)
• M18: 5,474,085 km (0.103 R)
• M19: 5,645,824 km (0.066 R)
• M20: 6,350,430 km (0.099 R)
• M21: 6,567,347 km (0.044 R)
• M22: 7,269,858 km (0.076 R)
• M23: 7,802,726 km (0.089 R)
• M24: 7,957,260 km (0.063 R)
• M25: 8,625,364 km (0.09 R)
• M26: 8,705,250 km (0.081 R)
• M27: 8,865,469 km (0.089 R)
• M28: 9,434,390 km (0.119 R)
• M29: 10,182,828 km (0.086 R)
• M30: 10,351,873 km (0.097 R)
• M31: 10,521,667 km (0.116 R)
• M32: 10,907,330 km (0.026 R)
• M33: 10,950,415 km (0.094 R)
• M34: 11,123,499 km (0.032 R)
• M35: 11,428,529 km (0.047 R)
• M36: 11,604,157 km (0.102 R)
• M37: 12,046,967 km (0.058 R)
• M38: 13,686,560 km (0.093 R)
• M39: 13,733,085 km (0.11 R)
• M40: 13,966,607 km (0.033 R)
• M41: 14,107,229 km (0.115 R)
• M42: 15,637,316 km (0.1 R)
• M43: 15,832,242 km (0.058 R)
• M44: 16,273,855 km (0.062 R)
• M45: 16,520,841 km (0.108 R)
• M46: 16,669,691 km (0.045 R)
• M47: 18,747,904 km (0.067 R)
• M48: 18,799,665 km (0.049 R)
• M49: 19,162,889 km (0.066 R)
• M50: 20,692,377 km (0.075 R)
• M51: 20,852,746 km (0.079 R)
• M52: 20,906,302 km (0.105 R)
• M53: 21,228,835 km (0.12 R)
• M54: 22,699,831 km (0.082 R)
• M55: 22,975,989 km (0.088 R)
• M56: 23,142,043 km (0.097 R)
• M57: 23,197,543 km (0.047 R)
• M58: 23,253,044 km (0.094 R)
• M59: 24,316,236 km (0.065 R)
• M60: 25,166,850 km (0.111 R)
• M61: 26,431,849 km (0.093 R)
• M62: 26,780,412 km (0.116 R)
• M63: 27,247,607 km (0.053 R)
• M64: 27,482,176 km (0.034 R)
• M65: 27,658,552 km (0.085 R)
• M66: 27,835,227 km (0.104 R)
• M67: 27,953,260 km (0.076 R)
• M68: 29,804,234 km (0.025 R)
• M69: 30,106,422 km (0.12 R)
• M70: 30,836,011 km (0.062 R)
• M71: 30,958,083 km (0.09 R)
• M72: 32,622,808 km (0.091 R)
• M73: 33,121,717 km (0.091 R)
• M74: 33,184,248 km (0.04 R)
• M75: 33,246,780 km (0.083 R)
• M76: 33,623,019 km (0.107 R)
• M77: 33,748,681 km (0.08 R)
• M78: 33,937,623 km (0.096 R)
• M79: 34,063,734 km (0.118 R)
• M80: 34,442,965 km (0.092 R)
• M81: 34,633,253 km (0.114 R)
• M82: 35,461,278 km (0.107 R)
• M83: 36,231,557 km (0.068 R)
• M84: 37,072,148 km (0.085 R)
• M85: 39,831,480 km (0.101 R)
• M86: 40,498,088 km (0.054 R)
• M87: 40,631,829 km (0.065 R)
• M88: 42,520,203 km (0.087 R)
• M89: 42,996,672 km (0.061 R)
• M90: 44,574,930 km (0.077 R)
• M91: 44,643,894 km (0.117 R)
• M92: 45,753,462 km (0.1 R)
• M93: 46,591,658 km (0.101 R)
• M94: 46,661,670 km (0.051 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.9

Radius: 3.4

Gravity: 68.16 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 7.53 AU - 12.39 AU

Year: 20961 Days

Day: 17.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 82,256,972 km

• M1: 55,800 km (0.052 R)
• M2: 178,470 km (0.075 R)
• M3: 906,862 km (0.101 R)
• M4: 1,017,116 km (0.035 R)
• M5: 1,250,638 km (0.066 R)
• M6: 1,697,337 km (0.091 R)
• M7: 2,879,609 km (0.034 R)
• M8: 3,374,778 km (0.11 R)
• M9: 4,534,910 km (0.114 R)
• M10: 6,268,600 km (0.113 R)
• M11: 6,744,022 km (0.034 R)
• M12: 7,067,303 km (0.111 R)
• M13: 7,176,359 km (0.119 R)
• M14: 7,673,324 km (0.047 R)
• M15: 8,181,208 km (0.116 R)
• M16: 8,295,651 km (0.076 R)
• M17: 9,468,049 km (0.108 R)
• M18: 10,073,472 km (0.112 R)
• M19: 10,134,657 km (0.094 R)
• M20: 10,195,992 km (0.107 R)
• M21: 10,628,929 km (0.074 R)
• M22: 10,753,693 km (0.065 R)
• M23: 10,879,056 km (0.045 R)
• M24: 11,067,849 km (0.038 R)
• M25: 11,963,342 km (0.099 R)
• M26: 12,749,179 km (0.112 R)
• M27: 13,416,685 km (0.081 R)
• M28: 17,358,589 km (0.041 R)
• M29: 17,948,902 km (0.12 R)
• M30: 19,148,976 km (0.093 R)
• M31: 19,376,963 km (0.066 R)
• M32: 19,453,109 km (0.112 R)
• M33: 20,919,168 km (0.115 R)
• M34: 22,022,003 km (0.08 R)
• M35: 23,956,005 km (0.101 R)
• M36: 24,695,168 km (0.038 R)
• M37: 24,777,746 km (0.113 R)
• M38: 29,634,291 km (0.118 R)
• M39: 30,427,309 km (0.098 R)
• M40: 30,693,294 km (0.051 R)
• M41: 30,959,878 km (0.065 R)
• M42: 31,048,888 km (0.101 R)
• M43: 31,227,359 km (0.116 R)
• M44: 31,316,669 km (0.104 R)
• M45: 31,674,806 km (0.102 R)
• M46: 32,124,348 km (0.09 R)
• M47: 32,847,952 km (0.086 R)
• M48: 32,938,758 km (0.095 R)
• M49: 33,576,943 km (0.041 R)
• M50: 33,760,051 km (0.116 R)
• M51: 35,422,532 km (0.052 R)
• M52: 35,889,128 km (0.097 R)
• M53: 36,170,072 km (0.099 R)
• M54: 36,922,699 km (0.104 R)
• M55: 37,965,995 km (0.085 R)
• M56: 38,252,176 km (0.118 R)
• M57: 38,347,769 km (0.059 R)
• M58: 39,307,738 km (0.082 R)
• M59: 39,887,579 km (0.086 R)
• M60: 40,567,651 km (0.102 R)
• M61: 43,524,902 km (0.087 R)
• M62: 44,325,251 km (0.054 R)
• M63: 45,029,408 km (0.046 R)
• M64: 47,574,516 km (0.075 R)
• M65: 50,480,006 km (0.091 R)
• M66: 52,590,234 km (0.113 R)
• M67: 52,696,448 km (0.076 R)
• M68: 52,909,177 km (0.064 R)
• M69: 53,228,867 km (0.09 R)
• M70: 54,836,745 km (0.118 R)
• M71: 55,700,673 km (0.089 R)
• M72: 58,319,683 km (0.112 R)
• M73: 60,532,534 km (0.082 R)
• M74: 60,755,435 km (0.105 R)
• M75: 60,978,486 km (0.107 R)
• M76: 61,313,585 km (0.113 R)
• M77: 61,425,484 km (0.087 R)
• M78: 62,210,275 km (0.113 R)
• M79: 64,698,237 km (0.105 R)
• M80: 66,643,009 km (0.079 R)
• M81: 67,218,662 km (0.09 R)
• M82: 68,143,027 km (0.108 R)
• M83: 69,304,505 km (0.078 R)
• M84: 69,537,578 km (0.096 R)
• M85: 69,654,265 km (0.05 R)
• M86: 70,238,444 km (0.045 R)
• M87: 71,176,423 km (0.076 R)
• M88: 71,411,591 km (0.098 R)
• M89: 72,118,590 km (0.115 R)
• M90: 72,827,983 km (0.102 R)
• M91: 77,373,814 km (0.109 R)
• M92: 79,680,912 km (0.045 R)
• M93: 80,047,128 km (0.066 R)
• M94: 80,414,091 km (0.082 R)
• M95: 82,010,450 km (0.098 R)
• M96: 82,133,719 km (0.048 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 19,131 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit